{"product_id":"hisense-t912-replacement-battery-37v-1450mah-li-ion","title":"Li37130C Hisense T912 Replacement Battery 3.7V 1450mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHisense T912 \/ T929 \/ E912 — 3.7V Li-ion Replacement Battery (Li37130C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1450mAh Li-ion cell built to the Li37130C spec, replacing the original battery in Hisense T912, T929, E912, and U912 smartphones. It fits devices that share the same physical footprint (65.00 × 49.90 × 4.10mm) and connector layout. Capacity is 5.37Wh — matched to the OEM spec in the product data.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT912 \/ T929 \/ E912 \/ U912 platform fit:\u003c\/strong\u003e\n    These models share the Li37130C cell format, the same connector pinout, and a compatible BMS handshake voltage threshold. One cell covers the group.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full charge-discharge run and monitored BMS cutoff behaviour at both ends — low-voltage lockout engaged correctly below 3.0V, and charge termination cut at 4.2V as expected for this chemistry.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-to-charge cycle. This gives the fuel gauge IC a clean reference curve against the new cell before high-current charging is applied to an uncalibrated coulomb counter.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the T912 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC in these Hisense devices tracks charge state using a coulomb counter calibrated to the original cell's discharge curve. Swap the cell and the IC still references the old curve — so the percentage on screen drifts from reality, often reading high then dropping sharply. One full discharge from 100% to auto-shutoff, followed by a full charge to 100%, forces the IC to relearn the new cell's voltage-to-capacity relationship. After that cycle, reported percentage stabilises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% remaining on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the modem or display pulls a current spike the cell can't sustain at that state of charge — voltage dips below the BMS cutoff threshold even though the gauge still shows capacity remaining. It's a voltage cliff issue, not a capacity defect. The fix is the same recalibration cycle: drain the phone to auto-shutoff under real load (screen on, mobile data active), then charge uninterrupted to 100%. Once the fuel gauge IC maps the actual voltage floor of the new cell, the phantom shutdowns stop. Target cell voltage at auto-shutoff should be approximately 3.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404270665818,"sku":"BWCS-HST929XL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404270698586,"sku":"BWCS-HST929XL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404270731354,"sku":"BWCS-HST929XL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HST929XL-1.webp?v=1779369550","url":"https:\/\/batteryweb.com\/products\/hisense-t912-replacement-battery-37v-1450mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}